Home / 8,543.20-12,816.40-2,700.66

Finding the Fourth Proportional to 8,543.20, 12,816.40 and 2,700.66

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Solution

The fourth proportional to 8,543.20, 12,816.40 and 2,700.66 is: 4,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.20 : 12,816.40 = 2,700.66 : x
  2. Step 2: Convert to fraction form
    8,543.20/12,816.40 = 2,700.66/x
  3. Step 3: Cross multiply
    8,543.20x = 12,816.40 × 2,700.66
  4. Step 4: Simplify right side
    8,543.20x = 34,612,738.82
  5. Step 5: Solve for x
    x = 34,612,738.82/8,543.20
  6. Step 6: Final answer
    x = 4,051.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.